PROBLEM TO BE SOLVED: To obtain an accurate tomographic image of an eye to be examined even when a scanning range of measuring light to the eye to be examined is large or when an optical path length and an intensity are different depending on a scanning position due to an optical component within an OCT apparatus.SOLUTION: An optical coherence tomographic device obtains a tomographic image of a predetermined portion of an object to be examined on the basis of an intensity of coherent light formed by synthesizing return light from the object to be examined irradiated with measuring light and reference light corresponding to the measuring light. The optical coherence tomographic device includes: a scanning optical system that scans measuring light to the object to be examined in an optical path of the measuring light； image generation means that generates a tomographic image on the basis of an intensity of coherence light； and image correction means that performs correction processing on the tomographic image according to the scanning position of the measuring light on the object to be examined.【課題】被検眼への測定光の走査範囲が広い場合、ＯＣＴ装置内の光学部品により光路長や強度が走査位置によって異なる場合にも精度よく被検眼の断層画像を取得する。【解決手段】測定光が照射された被検査物からの戻り光と、該測定光に対応する参照光とを合成した干渉光の強度に基づいて、被検査物の所定の部分の断層画像を取得する光干渉断層撮影装置において、測定光の光路において被検査物に対して測定光を走査する走査光学系と、干渉光の強度に基づいて断層画像を生成する画像生成手段と、被検査物上の測定光の走査位置に応じた補正処理を断層画像に行う画像補正手段と、を配する。【選択図】図１
